摘要
沉水植物是湖泊生态系统的重要组成部分,掌握贡湖湾沉水植物分布及变化对于科学评估贡湖湾水生态状况具有重要意义。应用DT-X多功能回声探测仪开展了贡湖湾沉水植物盖度调查,并将调查结果重点与遥感解析结果进行了对比。结果表明,1m和10m断面的仪器检测结果和人工调查结果差异较小,应用水声学技术开展沉水植物盖度调查简单、高效且精度更高,可以填补现有沉水植物调查方法的空白。
The coverage and variation of submerged macrophyte, which plays an important part in lake ecosystem, is a good indicator for assessing the water ecosystem of the Gonghu Bay. The submerged macrophyte coverage of the Gonghu Bay was investigated by DT-X split-beam sounder, and the results were compared with the analytical results of remote sensing. As for lm and 10m transects coverage, there was little difference between the results of DT-X and quadrate investigation. The results show that it is easier, highly efficient and more accurate to use hydroaeoustic method for submerged macrophyte coverage investigation.
出处
《水文》
CSCD
北大核心
2016年第4期44-47,共4页
Journal of China Hydrology
基金
水利部引进国际先进水利科学技术计划项目("948"项目
No.201417)
关键词
水声学
沉水植物
盖度
调查
贡湖湾
hydroacoustic
submerged macrophyte
coverage
investigation
Gonghu Bay